When U.S. National Security Advisor John Bolton tweeted that he will be visiting Azerbaijan on October 20 it could not have come sooner. This secular Muslim country of 9 million is one of America's most reliable yet underappreciated allies on the world stage. Mr. Bolton should use his visit to this geopolitically significant country sandwiched between a dangerous Russia and adventurous Iran to reiterate Washington's unwavering, strong and unabashed support for America's ally of over 26 years.